Democrats battle for Iowa

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Audience members cheer for Democratic 2020 U.S. presidential candidate and U.S. Senator Elizabeth Warren (D-MA) at a campaign town hall meeting in Cedar Rapids, Iowa, January 26, 2020. REUTERS/Brian Snyder

Jan 27, 2020 3:00 PM EST

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Silhouettes of attendees holding signs in front of an American flag are seen during a campaign rally held by Democratic 2020 U.S. presidential candidate and U.S. Senator Bernie Sanders (I-VT), in Sioux City, Iowa, January 26, 2020. REUTERS/Ivan Alvarado

Jan 27, 2020 3:00 PM EST

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Democratic 2020 U.S. presidential candidate Senator Amy Klobuchar greets crowd members during a town hall in Ames, Iowa, January 26, 2020. REUTERS/Brenna Norman

Jan 27, 2020 3:00 PM EST

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Elizabeth Warren (D-MA) arrives to meet with a group of volunteer leaders for her campaign at Lucky s on Sixteenth in Cedar Rapids, Iowa, January 26, 2020. REUTERS/Brian Snyder

A flag supporting President Donald Trump sits on a trailer in Emmetsburg, Iowa, January 16, 2020. REUTERS/Shannon Stapleton

Jan 27, 2020 3:00 PM EST

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Pins of Pete Buttigieg are on display during a campaign rally in Muscatine, Iowa, January 21, 2020. REUTERS/Ivan Alvarado

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A sign for former Secretary of State Hillary Clinton its outside a home in Des Moines, Iowa, January 20, 2020. REUTERS/Shannon Stapleton

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Elizabeth Warren and Donna Duvall, chair of the Jackson County Democrats, talk with a potential supporter as she goes door-to-door during a voter canvassing event in Maquoketa, Iowa, January 5, 2020. REUTERS/Daniel Acker

Bernie Sanders dives for the ball during a baseball game between his staff, "The Revolutionaries," and the Leaders Believers Achievers Foundation at the "Field of Dreams" movie site in Dyersville, Iowa, August 19, 2019. REUTERS/Al Drago

Jan 27, 2020 3:00 PM EST

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Hollywood actor and social activist Susan Sarandon speaks as she introduces Bernie Sanders during a campaign event at his campaign office in Davenport, Iowa, August 19, 2019. REUTERS/Al Drago

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Two supporters hold large cutouts of Pete heads at a campaign event for Pete Buttigieg in Newton, Iowa, September 21, 2019. REUTERS/Elijah Nouvelage

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Joe Biden leans down and smiles for the media while frying steaks at the Polk County Democrats' Steak Fry in Des Moines, Iowa, September 21, 2019. REUTERS/Elijah Nouvelage

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